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| brightness of a star as it would appear if located 32.6 light years away from the earth |
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| brightness of a star as it appears from the earth |
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| type of spiral galaxy with a bar of stars that runs through its center |
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| pair of stars that revolve around each other |
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| a hole in space with a gravity so great that not even light can escape, formed by the collapse of a very large supernova |
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| describing any star that is always visible in the night sky and, from the Northern Hemisphere, can be seen circling Polaris |
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| a type of galaxy with a very bright center that contains little dust and gas and is spherical to disklike in shape |
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| large scale group of stars |
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Definition
| very large cool bright star |
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